Bussmann®
1000-4000A
FWA 130V
®
Electrical Characteristics
Ordering Information
I2t (A2 Sec)
Rated
Current
Clearing
Watts
Part
Carton
RMS-Amps
Pre-arc
at 130V
Loss
Number
Qty.
1000
170000
460000
60
FWA-1000AH
______________________________________________________________________________________
Type
Dimensions
Curves
Carton
Weight
(lbs)
Figure
Number
See Page
or
(BIF #)
3.3
Fig. 1
1200
270000
730000
70
FWA-1200AH
______________________________________________________________________________________
1500
520000
1400000
78
FWA-1500AH
______________________________________________________________________________________
FWA
2000
860000
2400000
108
FWA-2000AH
130V ______________________________________________________________________________________
2500
1500000
4100000
130
FWA-2500AH
______________________________________________________________________________________
1
3000
2100000
5700000
150
FWA-3000AH
______________________________________________________________________________________
4000
3400000
9200000
257
FWA-4000AH
35785301
______________
Fig. 2
n Interrupting rating 200kA RMS Symmetrical.
n Watts loss provided at rated current.
n (130 Vdc/Interrupting Rating 50kA) U.L. Recognition on 1000 through 2000 amperes.
1 kg = 2.2 lbs
1 lb = 0.45 kg
Electrical Characteristics
Total Clearing I2t
The total clearing I2t at rated voltage and
at power factor of 15% are given in the
electrical characteristics. For other voltages, the clearing I2t is found by multiplying by correction factor, K , given as
a function of applied working voltage,
E g , (RMS).
Arc Voltage
This curve gives the peak arc voltage,
U L , which may appear across the fuse
during its operation as a function of the
applied working voltage, E g , (RMS) at a
power factor of 15%.
1.5
K
Power Losses
Watts loss at rated current is given in
the electrical characteristics. The curve
allows the calculation of the power losses at load currents lower than the rated
current . The correction factor, K p , is
given as a function of the RMS load current, Ib , in % of the rated current .
1.0
Kp
0.8
UL
1.0
0.6
0.5
300
0.4
0.5
0.2
0.3
0.2
0.15
26
7-11-01
0.3
200
100
Eg
Eg
65
104
SB01191
130
50
100
Ib
0.1
150
30 40 50
60
70
80 90 100%
Form No. FWA 130
Page 1 of 2
BIF Doc #720001
Bussmann®
FWA 130V
1000-4000A
®
Dimensions
Fig. 1: 1000-3000 Amp Range
Fig. 2: 4000 Amp Range
1.875
1.875
D
B
B
C
Order #
FWA-1000AH-2000AH
FWA-2500AH-3000AH
FWA-4000AH
Fig.
1
1
2
B
2.0
3.0
3.5
C
1.0
1.5
1.5
D
—
—
1.5
C
Thread Depth
Tapped ‹Ω•∑-24 ≈ ⁄Ω™∑
Tapped ⁄Ω™∑-20 ≈ ⁄Ω™∑
Tapped ⁄Ω™∑-20 ≈ ⁄Ω™∑
Dimension in inches.
1mm = 0.0394∑
1∑ = 25.4mm
The only controlled copy of this BIF document is the electronic read-only version located on the Bussmann Network Drive. All other copies of this document are by definition
uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications.
Bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Bussmann also reserves
the right to change or update, without notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.
7-11-01
SB01191
Form No. FWA 130
Page 2 of 2
BIF Doc #720001